Title :
Low Frequency Eddy Current Method for Internal Defect Inspection of Steel Structure
Author :
Lee, Kang Hyouk ; Park, Il Han
Author_Institution :
Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea
Abstract :
This paper proposes a low frequency eddy current method for inspection of internal defect in steel structures. A magnetic sensor system for exciting field is designed to enhance sensitivity and not to cause magnetic saturation. Inspection process is explained with a nonlinear equivalent electric circuit. The designed magnetic sensor system is analyzed by finite element method. The results of experiment are compared with the analysis results to validate the proposed method.
Keywords :
finite element analysis; inspection; magnetic sensors; steel; structural engineering; exciting field; finite element method; inspection process; internal defect inspection; low frequency eddy current method; magnetic saturation; magnetic sensor system; nonlinear equivalent electric circuit; sensitivity enhancement; steel structure; Eddy currents; Magnetic circuits; Magnetic cores; Magnetic flux; Magnetic sensors; Resistance; Steel;
Conference_Titel :
Electromagnetic Field Problems and Applications (ICEF), 2012 Sixth International Conference on
Conference_Location :
Dalian, Liaoning
Print_ISBN :
978-1-4673-1333-9
DOI :
10.1109/ICEF.2012.6310321
